Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a460940d107ec67…

MALICIOUS

PDF

70.2 KB Created: 2021-02-11 18:52:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 01e6892399f78be7d41cbbef1d899c77 SHA-1: 5003f3537f0c6afde31f35d960ead461768750b4 SHA-256: 1a460940d107ec672eda6e514a5b6c49804a8b6aa88c0650e1c8acc3398beb90
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://druttle.ru/wix?keyword=racing+rivals+2+apk+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4402944/normal_5fc75f835c519.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483349/normal_6024f787a7d45.pdfIn PDF document text
    • http://detonic-deutschland.website/zanazojonokhx6o.pdfIn PDF document text
    • http://vekeludin.iblogger.org/acc_2017_lipid_guidelines.pdfIn PDF document text
    • http://nokirixako.iblogger.org/travel_guides_commentator.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369904/normal_5ffcf4be4d181.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496013/normal_5fdbe8a91c868.pdfIn PDF document text
    • http://idealslimitalia-oficial.site/loxafevudarusugixaginokxf9ru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mokimonanogi.rf.gd/baridulanigebut.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/application_loader_xcode.pdfIn PDF document text
    • http://rebukupomapet.rf.gd/41016755828.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/76490835628.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/1380633273.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/58025154273.pdfIn PDF document text
    • https://s3.amazonaws.com/posaxugidut/44075912191.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/free_christmas_gift_tag_templates_for_word.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d47e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD47E 5676 bytes
SHA-256: 94a13182d59a59864865e2012de37a0cd2de7aa0126c7ff5a88d0e7f7f63f2e8
font_01_sfnt_off0000e804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE804 10376 bytes
SHA-256: 1f572215f7bf0c77e49a0c1dbb480586ac2c8efabc5798cea11a430cbf2ba8ec